A segmented hoisting butt joint device for a large-span steel beam and a construction method thereof

Abstract

The application relates to the technical field of building construction, in particular to a sectional hoisting butt joint device for large-span steel beams and a construction method thereof, which comprises two hoop plates, the two hoop plates are arranged at the joint of two steel beams, the end of the steel beam is fixed with a screw rod on both sides, the screw rod is sleeved with a screw nut two after penetrating through the hoop plate, the two sides of the hoop plate are inserted with an insertion block, one end of the insertion block is inserted on the surface of the screw nut two; the upper and lower ends of one hoop plate are fixed with elastic hanging plates, the elastic hanging plates are inserted into the clamping grooves arranged at the upper and lower ends of the other hoop plate; the beneficial effects are that the two hoop plates are assembled into a H-shaped frame body and arranged at the joint of the steel beams, the screw rods fixed on the two sides of the end of the steel beam are sleeved with the screw nut two after penetrating through the hoop plates, the structure design makes the two steel beams tightly fixed together through the hoop plates and the screw rods, the large load can be borne, the strength and stability of the large-span steel beam connection are effectively ensured, and the safety and reliability of the steel beam structure are improved.

Claims

1. A construction method for a segmented hoisting and docking device for large-span steel beams, the device comprising two hoisting plates (1) fitted onto the joint of two steel beams (2), characterized in that: At both ends of the steel beam (2), screws (201) are fixed on both sides. After the screws (201) penetrate through the hoop plate (1), nuts two (203) are sleeved and screwed. Plug blocks (3) are inserted into both sides of the hoop plate (1), and one end of the plug block (3) is inserted on the surface of the nut two (203); Elastic hanging plates (105) are fixed at both the upper and lower ends of one hoop plate (1), and the elastic hanging plates (105) are inserted into the card slots (104) opened at both the upper and lower ends of the other hoop plate (1); The two hoop plates (1) are assembled into an "I"-shaped frame body. Through holes (101) are opened on the surfaces of the two hoop plates (1), and the through holes (101) correspond to the screws (201) one by one. One end of the screw (201) penetrates through the through hole (101) and then a nut two (203) is sleeved and screwed; Digging slots (102) are opened on both sides of the hoop plate (1). Installation openings are opened on the surface of the digging slots (102). The installation openings are in the shape of a "convex" groove. The height of the digging slots (102) is greater than the height of the installation openings. The plug blocks (3) are in the shape of a "T"-shaped plate. One end of the plug block (3) penetrates through the digging slots (102) and then is inserted into the slot (202) opened on the surface of the screw (201); A notch (301) is opened at one end of the plug block (3) away from the screw (201). A rubber support block (302) is fixed inside the notch (301). One end of the rubber support block (302) is fixed on the surface of the retaining piece (303). The retaining piece (303) is fixed between the top surface and the bottom surface of the installation opening; A second pull ring (304) is fixed at one end of the plug block (away from the steel beam (2). When the rubber support block (302) is in the initial state, one end of the plug block (3) is inserted into the slot (202). When the plug block (3) is pulled out of the slot (202), the rubber support block (302) is squeezed between the plug block (3) and the retaining piece (303) to generate elastic deformation; The construction method includes the pre-limiting step of the hoop plate and the screw: After the hoop plate (1) is pushed in place, the operator hooks the second pull rings (304) fixed on the plug blocks (3) on both sides of the hoop plate (1) with fingers, and张拉 the plug blocks (3) away from the steel beam (2) through the second pull rings (304); Since the plug blocks (3) are in the shape of a "T"-shaped plate, and there are "convex"-shaped installation openings on the surfaces of the digging slots (102) opened on both sides of the hoop plate (1), with the张拉 action, one end of the plug block (3) will gradually retract into the installation opening; Continuously push the hoop plate (1). When the screw (201) completely penetrates through the through hole (101), and one plate body of the hoop plate (1) reliably abuts against the vertical plate of the steel beam (2), release the second pull ring (304), and the rubber support block (302) rebounds, pushing the plug block (3) back to its original position, so that one end of the plug block (3) accurately inserts into the slot (202) pre-opened on the surface of the screw (201), and the hoop plate (1) is firmly limited on the screw (201) before the nut two (203) is installed.

2. The construction method for a segmented hoisting and docking device for large-span steel beams according to claim 1, characterized in that: The other clamp plate (1) has two slots (104) at its top and bottom. The slots (104) are L-shaped. The elastic hanging plate (105) corresponds to the slots (104) one by one. The elastic hanging plate (105) is L-shaped. The end of the elastic hanging plate (105) inserted into the slot (104) has a slope, and a pull ring (106) is fixed at one end of the elastic hanging plate (105).

3. The construction method for a segmented hoisting and docking device for large-span steel beams according to claim 2, characterized in that: Both of the aforementioned hoop plates (1) have reserved grooves (107) on their top and bottom surfaces. An assembly column (108) is fixed inside the reserved groove (107). The height of the assembly column (108) is equal to the depth of the reserved groove (107). The assembly column (108) is a semi-cylinder with external threads on its surface.

4. The construction method for a segmented hoisting and docking device for large-span steel beams according to claim 3, characterized in that: After the two hoop plates (1) are assembled, the top and bottom assembly columns (108) of the two hoop plates (1) are assembled into a stud with external thread connection, and a nut (109) is screwed onto the stud.

5. A construction method for a segmented hoisting and docking device for large-span steel beams according to claim 4, characterized in that: Includes the following steps: I. Initial connection between the hoop plate and the steel beam The two ends of the two large-span steel beams (2) that need to be joined are precisely aligned to ensure that the joint is flat and tight. The two hoop plates (1) are placed on the front and back sides of the joint of the two steel beams (2), and then the two hoop plates (1) are pushed towards the joint until the ends of the two hoop plates (1) come into contact with each other. The screws (201) that are pre-fixed on both sides of the ends of the steel beams (2) will accurately pass through the corresponding through holes (101) opened on the surface of the hoop plates (1). II. Assemble and fix the two hoop plates. After both hoop plates (1) have completed the connection and pre-limiting operation with the corresponding steel beam (2), align the elastic hanging plate (105) fixed at the upper and lower ends of one hoop plate (1) with the "L" shaped slot (104) opened at the upper and lower ends of the other hoop plate (1), and slowly push the two hoop plates (1) closer to each other so that the elastic hanging plate (105) is inserted into the slot (104); after the two hoop plates (1) are assembled together, observe the reserved slots (107) opened on the top and bottom surfaces of the two hoop plates (1). At this time, the semi-cylindrical assembly column (108) with external threads fixed in the two reserved slots (107) will be assembled into a complete external threaded connecting stud. Put the nut (109) on the assembled stud and use a tool to screw it in and lock it, further strengthening the connection between the two hoop plates (1) and ensuring the stability and reliability of the entire docking device.

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